Lamp-reflector.



J. G. STEARNS. LAMP REFLECTOR.

APPLICATION FILED B13023, 1912,

1 ',O84,71 B. Patented Jan. 20, 1914.

40 and Fig. 3 is an end view JASON C. STEARNS, F WORCESTER,MASSACHUSETTS.

LAMP-R1EFLECTOR.

Specification of Letters Patent.

Patented Jan. 20, 1 914.

Application filed December 23, 1912. Serial'No. 738,153.

To all whom it may concern:

Be it known that I, JASON O. STEARNS, a citizen of the United States,residing at Worcester, in the county of Worcester and 5 State ofMassachusetts, have invented a new and useful Lamp-Reflector, of whichthe following is a specification.

This lnvention relates to a reflector for electric lamps, particularlythose in common use on motor vehicles and the like.

The principal objects of this invention are to provide a construction inwhich the electric lamp can be removed very conveniently and readily forreplacement and repairs without interfering with or even opening,

the front glass, and without providing a bulky and expensive connectionat the rear, and also without reducing the reflecting surface; in otherwords, without making the reflecting surface smaller than it is on thosereflectors which are so arranged that the lamp has to be removed fromthe front.

The invention'also involves a construction and arrangement of parts sothat when the lamp is-removed from the back it will be capable of beingentirely taken out of the reflector and moved around and manipit latedat ease.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which,

Figure 1 1s a central longitudinal sectional view of an automobile lampand reflector so constructed in accordance with this invention; Fig. 2is a side View of the removable section of the reflector with the lampattached and showing the relation of the same to the end of the/outerpart of the reflector, of the removable section and lamp. a

The invention is shown as applied to an ordinary lamp casing 10 havingthe usual connections 11 for the electric wires and the v usual frontglass 12. In this case the glass can be permanently secured in positionif desired, which is one of the advantages of the invention. Thereflector is shown as com prising an outer stationary section 13 and aninner removable concave section 14. The

outer section ,is provided with a perforation for receiving the innersection 14 and is provided with an inwardly extending flange 16 and anoutwardly extending cylindrical guide 17 having bayonet joint slots 18therewith the outer section on. The inner section 14, is also providedwith an outwardly extending cylindrical guide 20 fitting in the guide 17and at its inner edges it is provided with a circumferential notch 21for receiving the circular projection 16. This notch and projection areof the same thickness so that" the inner surface .on the reflectorsection -14; constitutes an accurate continuation of the inner surfaceof the outer section 13 and together the two sections constitute in thiscase a parabolic reflector. The inner section is also provided with ascrew-threaded projection 23 at the center extending outwardly therefromfor receiving any desired kind of connections 24 from the electricalwires, said connections also having a socket for supporting anincandescent lamp 25. The section 14 and the perforation through whichit passes are sufliclently large so that the lamp Wlll pass through theperforation and can be drawn out from the main reflector section throughthe back. On the flange 20 are a series of pins 26 having heads adaptedto enter the bayonet joint slots 18 and in place of one of them is aheaded screw 27 for fastening the removable section in position on thestationary outer section.

The inner section preferably is concentric so that the lamp is moved outand in axially.

It will be seen that the outer casin 10 can be dispensed with if desiredand t at the glass 12 can be sealed permanently in place with-thisinvention. v

The other features of construction are not described in detail as anydesired means can be employed for holding the front section in positionand connecting up the parts, but there are flexible electricalconnections 28 between the two members 11 and 24 so that when thesection 14 is taken outwith the lamp it can be manipulated as desired soas to be inspected or repaired and the lamp replaced. In this way theentire interior of the reflector and support for the lamp are utilizedfor reflecting purposes and the lamp is manipulated in a most convenientmanner without necessitating the removal of the glass or the opening ofthe front of the lamp, and in fact the reflector can be cleaned from theback if desired.

Although I have illustrated and described only a single embodiment ofthe invention, I am aware of the fact that modifications gag weenieating with the guide and securing the sections together.

3. A. reflecting lamp comprising an outer casing, a concave reflectorsecured therein and having an opening through its central portion, acylindrical flange secured in the rear sideo'li said reflector andslightly larger in diameter than said opening, a cylindricalsleeve-fitting within said flange and having secured to its forward enda second concave reflector adapted to constitute a continuation of themain reflecting surface, a bayonet lock for can he made therein by anyperson skilled in the art without departing from the scope thereof asexpressed in the claims. Therefore, I do not Wish to be limited to allthe details of construction herein shown and described, but

What 1 do claim is 1. As an article of manufacture a reflectorpresenting a continuous concave retlecting surface and an elect is lightdetachahly mounted in front of and within said concave surface, thecentral portion of said reflector being removably secured to the outerortion to permit insertion of the light 'rom the rear.

2. As an article of manufacture, a refiector comprising two concavesections removably connected with each other, one inside the other, thereflecting surface of the inner section constituting a continuation. ofthe refleeting surface of the outer section and having means thereon fordetachably supporting a lamp, the outer section having a guide on therear surface thereof for the inner section, and-means on the innersection cooperdrawing the inner surtace firmly against the reflector,and means for securing the same in position, said inner sectime beingprovided with means for detachably securing an electric light thereto.

In testimony whereof I have hereunto set 11': hand, in the presence oftwo subscribing witnesses. I

JASON C. S'lEr-lltNS.

Witnesses ALBERT E. FAY, G. l omuss'r Wesson.

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